Reusable buffing wheel carrier

ABSTRACT

Two slidably interfitting duplicate and complementary members, each having an end plate, a hole approximately centrally formed in said end plate to mount the member on an arbor, three webs, each defining one face, equally, angularly spaced about the center of said hole, said faces occupy planes intersecting at substantially the center of the hole; the hole is elongated through the end plate and through said webs with the effect of dividing the webs into three V-shaped units equally spaced about the center of said hole, and each said unit is comprised of two sectional webs having their inner end portions conjoined and diverging outwardly to terminate uniformly in peripheral faces on which buffing wheels may be mounted; an outer marginal edge portion of the plate extends beyond said peripheral faces and buffing wheels may abut against such marginal portion which resists their escape axially of the member; the spacing of the three V-shaped units leaves three equally spaced V-shaped sockets, one between each pair of such units, so that when two complementary members are assembled, the V-shaped units on each member is received in a V-shaped socket on the other member; the aforesaid surfaces forming the outer surfaces of each V-shaped unit, and being so inclined as to define a V of larger dimensions at the juncture of the surfaces with the end plate and a smaller V at the end of such surfaces remote from said end plate, with the effect that the V-shaped sockets are larger at the ends of said units remote from said end plate and smaller at the juncture of the adjacent faces which form such socket, whereby the smaller ends of the V-shaped units are received into the larger ends of the V-shaped sockets, and with the result that upon slidably assembling the two complementary units, the inclined surfaces fully interengage with little or no space therebetween.

United States Patent Patterson [54] REUSABLE BUFFING WHEEL CARRIER Henry J. Patterson, 468 W. Hudson, Madison Heights, Mich. 48071 [22] Filed: Aug. 10, 1970 [21] Appl. No.: 62,534

[72] Inventor:

[52] U.S.Cl ..15/230.l9, 242/118.61 [51] Int. Cl ..B24d 29/00 [58] Field of Search ..15/230.14, 230.l7,230.l9,

Primary Examiner-Leon G. Machlin Attorney-Allan J. Murray [57] ABSTRACT Two slidably interfitting duplicate and complementary members, each having an end plate, a hole approximately centrally formed in said end plate to mount the member on an arbor, three webs, each defining one face, equally, angularly spaced Feb. 22, 1972 about the center of said hole, said faces occupy planes intersecting at substantially the center of the hole; the hole is elongated through the end plate and through said webs with the effect of dividing the webs into three V-shaped units equally spaced about the center of said hole, and each said unit is comprised of two sectional webs having their inner end portions conjoined and diverging outwardly to terminate uniformly in peripheral faces on which buffing wheels may be mounted; an outer marginal edge portion of the plate extends beyond said peripheral faces and bufiing wheels may abut against such marginal portion which resists their escape axially of the member; the spacing of the three V-shaped units leaves three equally spaced V-shaped sockets, one between each pair of such units, so that when two complementary members are assembled, the V-shaped units on each member is received in a V-shaped socket on the other member; the aforesaid surfaces forming the outer surfaces of each V-shaped unit, and being so inclined as to define a V of larger dimensions at the juncture of the surfaces with the end plate and a smaller V at the end of such surfaces remote from said end plate, with the effect that the V-shaped sockets are larger at the ends of said units remote from said end plate and smaller at the juncture of the adjacent faces which form such socket, whereby the smaller ends of the V-shaped units are received into the larger ends of the V-shaped sockets, and with the result that upon slidably assembling the two complementary units, the inclined surfaces fully interengage with little or no space therebetween.

3 Claims, 6 Drawing Figures REUSABLE BUFFING WHEEL CARRIER There are no other applications pending by, nor patents issued to, the applicant with respect to this invention.

FIELD OF INVENTION The invention lies in the provision of reusable carrier for buffing wheels in which two similar, complementary members are formed with the V-shaped units as described above, which units are spaced in such a manner that V-shaped sockets are formed, so that two complementary members may be slidably interengaged, with the V-shaped units on each member received in a V-shaped socket on the other member, and with the provision of a marginal portion of the end plate extending beyond the peripheral faces of the webs of said V-shaped units, so that then two identical and complementary carrier members are assembled, one or more buffing wheels may be carried jointly by the peripheral faces of said V-shaped members and clamped between the marginal portions of said end plates.

DESCRIPTION OF THE PRIOR ART There is enclosed herewith the required disclosure of the prior art discovered in the course of a preliminary search, some of which seem to deal with methods of manufacturing buffing wheels, and one of which, namely the patent to .leske, U.S. Pat. No. 3,528,807, discloses a practice which is believed to be prevalent in the art at the moment. Such practice provides for inexpensive, stamped throwaway inserts, to be fitted individually into buffing wheels, and said inserts are provided with peripheral clamps which are bent to engage the buffing wheel. A plurality of buffing wheels so equipped may then be assembled to constitute a large buffer of the desired dimensions. The undesirable feature of this practice is that the central units are manufactured with the intention that they shall be removed and discarded once their function with any individual buffing wheel has been performed. This is time consuming and wasteful and contributes to the amount of waste materials which must be disposed of.

An object of the present invention is to provide means for rigidly supporting buffing wheels from the inner diameter of the buffing wheels to the arbor upon which the carrier is to be mounted, and to further provide, in one assembly, means for clamping the buffing wheels against escape axially of an arbormounted carrier, and against rotative movement relative to said carrier, which rotative movement would partially or completely negate the intended use of a buffing wheel.

A further object of the invention is to provide such a unit constructed in such a manner as to be reusable once its desired function with an assembled plurality of buffing wheels has been completed.

These and various other objects are attained by the inven tion hereinafter disclosed and illustrated in the accompanying drawings, wherein:

FIG. 1 is an elevational view of a single carrier member from the end of the V-shaped members remote from said end plate, clearly showing the hole identified hereinafter which divides the webbing into said V-shaped units.

FIG. 2 is an elevational view of said unit taken in the direction of line 2-2 of FIG. 1.

FIG. 3 is a side elevational view showing two identical and complementary units fully assembled one with the other, and illustrating in dash line a plurality of buffing wheels carried by the assembled unit.

FIG. 4 is an elevational view in partial section taken in the direction of line 4-4 of FIG. 3, with the end plate of one member removed to illustrate the interengagement of the V- shaped units in the V-shaped sockets.

FIG. 5 is an elevational partial view to illustrate the present practice in the art, of employing a disposable insert temporarily clamped in position in a buffing wheel.

FIG. 6 is a partial sectional view taken in the direction of line 6-6 of FIG. 5 further illustrating the present practice in the art.

In these views the reference character I designates the assembled carrier generally, said carrier consisting of a first member 2 and a second member 3. Each said member is formed with an end plate 4, in which holes 5 may be formed to lighten the weight of the construction. It should be apparent that the holes need not be triangular as shown, but may be circular, or assume any other desired formation. Rigidly extending from the end plate are webs 6 which outwardly terminate in peripheral faces 6a. A marginal portion of the plate extends outwardly beyond said peripheral faces for reasons hereinafter explained.

A hole 8 is formed centrally in the end plate 4 to mount the member on an arbor (not shown) and said hole is extended axially of the member and through said webs, as at 9. The extension 9 (FIGS. 2 and 3), of the hole has the effect of dividing the webs 6 into V-shaped units 10, each unit having two webbed sections conjoined at their inner ends, and outwardly diverging from said hole to said peripheral faces. Said V- shaped units are equally spaced angularly about the axis of the member, and between each two V-shaped units there is a V- shpaed socket 111, which, naturally, is also equally spaced angularly about said axis.

Each of said V-shaped units has two outer surfaces 112 and I3, and it is desirable to incline said surfaces so that the V defined by said surfaces at their juncture with the end plate 4 is of greater dimension than the V defined by said surfaces at their ends remote from the end plate.

As said inclined surfaces define the V-shape of the sockets 111, a consequence of their inclination is that the V-shaped socket has a smaller dimension at the juncture of said faces with said end plate, and a greater dimension at the end of said surfaces remote from the end plate.

As seen in FIG. 4, the complementary members I and 2 may be slidably conjoined, with each V-shaped unit It) being slidably received in a V-shaped socket 11. The smaller end of the V-shaped unit, is received in the larger end of the V- shaped socket, which facilitates initial assembly of the two members. It is proposed to so incline said surfaces, however, that when the two members are fully assembled, as illustrated in FIG. 3, there is no clearance or play between engaging surfaces of the V-shaped units and the respective sockets.

Designated as 20 are buffing wheels, a plurality of which are illustrated in the upper portion of FIG. 3 as being carried jointly upon the aforesaid peripheral faces 6a, and clamped between the marginal portions 7 of the assembled first member and second member. The clamping tension is proposed to be sufficient to resist axial as well as rotational movement of the buffing wheels. In FIG. 4 a bufiing wheel is shown in somewhat more detail than is employed in FIG. 3, and it may be seen to include a metal rim 21 formed with a plurality of teeth 22 which are pressed toward each other to imbed themselves in the material of the buffing wheel.

A throwaway insert 23 is illustrated in an elementary fashion in FIGS. 5 and 6. The insert is formed with a metal hub 24 at its center, for mounting upon an arbor. At its outer periphery, the insert is formed with a plurality of lugs 25 which engage on one side of the aforesaid metal rim 2t. Clamping lugs 26 are stricken from the material of the insert immediately inwardly of preselected lugs 25, and in their formation said clamping lugs leave an aperture 26. A clamping lug is indicated in dashline at 28 in FIG. 6 to show its approximate contour before it is pressed upwardly and inwardly to engage the teeth 22 of said metal hub 24.

It would now appear clear that the improved carrier may be reused repeatedly, and as seen in FIG. 4, will provide contact with substantially the entire peripheral surface of an arbor, and further provides rigid metal support extending outwardly from an arbor with a strong angular design for the interior diameter of buffing wheels. It is anticipated that the use of the improved buffing wheel carrier will result in much saving of time in the application and removal of the throwaway units, as well as averting the waste implicit in the throwaway inserts. Further, in keeping with current concern over pollution, the reusable buffing wheel carrier may well substantially reduce the amount of trash to which the throwaway units must inevitably contribute.

What I claim is:

l. A buffing wheel carrier to mount one or more buffing wheels upon an arbor for rotation with such arbor, said carrier including a first member having,

an end plate,

a hole in said end plate to mount the carrier coaxially upon an arbor, one or more webs, rigidly carried by said end plate and defining one or more surfaces extending approximately transversely to said end plate and being angularly, equally spaced about the center of said hole, and occupying planes approximately radial to said hole, and intersecting at the center of said hole, said hole being elongated through said webs to interrupt said planes and divide said webs into V-shaped units, each unit having two webs diverging outwardly from said hole,

each said diverging web terminating outwardly of said hole in a peripheral face, and

clamping means to clamp one or more buffing wheels upon said carrier to resist movement of said buffing wheels axially or rotatively to the carrier.

2. A buffing wheel carrier as set forth in claim 1,

a substantially duplicate, complementary second member reversely assembled with said first member,

said V-shaped units being angularly equally spaced about the center of the hole,

V-shaped sockets spaced alternately with said units,

whereby each socket on each member receives a respective V-shaped unit of the other member,

said clamping means being a portion of each end plate extending outwardly of said peripheral faces whereby buffing wheels carried jointly by said peripheral faces are clamped between said portions to resist axial and rotative movement of buffing wheels relative to said carrier.

3. A buffing wheel carrier as set forth in claim 2,

said interrupted surfaces constituting the outer faces of each V-shaped unit,

said surfaces of each V-shaped unit being so convergent toward each other as to define a larger V at the juncture of said surfaces with said end plate, than at the extremity of said faces remote from said end plate,

said inclined surfaces defining the sides of said V-shaped sockets, and defining a larger V at said extremity remote from said plate, than at the juncture of said surfaces with said plate,

whereby the smaller ends of each V-shaped unit is initially received in the larger end of each V-shaped socket leaving a space between adjacent surfaces, which space is eliminated as the complementary members are slidably fully assembled. 

1. A buffing wheel carrier to mount one or more buffing wheels upon an arbor for rotation with such arbor, said carrier including a first member having, an end plate, a hole in said end plate to mount the carrier coaxially upon an arbor, one or more webs, rigidly carried by said end plate and defining one or more surfaces extending approximately transversely to said end plate and being angularly, equally spaced about the center of said hole, and occupying planes approximately radial to said hole, and intersecting at the center of said hole, said hole being elongated through said webs to interrupt said planes and divide said webs into V-shaped units, each unit having two webs diverging outwardly from said hole, each said diverging web terminating outwardly of said hole in a peripheral face, and clamping means to clamp one or more buffing wheels upon said carrier to resist movement of said buffing wheels axially or rotatively to the carrier.
 2. A buffing wheel carrier as set forth in claim 1, a substantially duplicate, complementary second member reversely assembled with said first member, said V-shaped units being angularly equally spaced about the center of the hole, V-shaped sockets spaced alternately with saiD units, whereby each socket on each member receives a respective V-shaped unit of the other member, said clamping means being a portion of each end plate extending outwardly of said peripheral faces whereby buffing wheels carried jointly by said peripheral faces are clamped between said portions to resist axial and rotative movement of buffing wheels relative to said carrier.
 3. A buffing wheel carrier as set forth in claim 2, said interrupted surfaces constituting the outer faces of each V-shaped unit, said surfaces of each V-shaped unit being so convergent toward each other as to define a larger V at the juncture of said surfaces with said end plate, than at the extremity of said faces remote from said end plate, said inclined surfaces defining the sides of said V-shaped sockets, and defining a larger V at said extremity remote from said plate, than at the juncture of said surfaces with said plate, whereby the smaller ends of each V-shaped unit is initially received in the larger end of each V-shaped socket leaving a space between adjacent surfaces, which space is eliminated as the complementary members are slidably fully assembled. 